In-Vehicle Passenger Detection Using FMCW Radar
Heemang Song, Youngkeun Yoo, Hyun‐Chool Shin
Abstract
In this paper, we suggest features for passenger detection inside the vehicle using frequency modulated continuous wave (FMCW) radar. In radar time-frequency spectrum, the magnitude variation of a person is caused by the physiological movements such as breathing and heartbeat. To quantify the physiological movements, the power of respiratory frequency band (0.1-0.4 Hz) and heartbeat frequency band (0.8-1.7 Hz) is used. We experimentally compare the proposed features under presence and absence of a person using FMCW radar signal acquired inside the vehicle.
Topics & Concepts
HeartbeatContinuous-wave radarRadarComputer scienceSIGNAL (programming language)Pulse-Doppler radarFrequency modulationRemote sensingAcousticsTelecommunicationsRadio frequencyRadar imagingPhysicsGeologyComputer securityProgramming languageNon-Invasive Vital Sign MonitoringInfrared Thermography in MedicineWireless Body Area Networks